MCA 109 Object Oriented Programming and JAVA Notes for GGSIPU MCA Sem 1

Written by Prateek Talwar, Founder, Unnati Educations · Reviewed by Ritik Rawat, B.Tech, Senior Full Stack Developer · Checked against MCA Scheme of Examination & Detailed Syllabus (affiliated institutes, A.S. 2025-26 onwards), 28 Jul 2025 · Updated 13 October 2026 · Editorial policy

Scheme: MCA (2 years) scheme, A.S. 2025-26 onwards | Applies to: batches admitted 2025-26 onwards | Verified against: MCA Scheme of Examination & Detailed Syllabus, BoS 28 Jul 2025

MCA-109 Object Oriented Programming and JAVA at a glance: GGSIPU MCA Sem 1 credits, units and exam pattern

MCA-109 is one of five theory papers in the first semester of the two-year MCA. It sits with four other GGSIPU MCA Semester 1 papers.

MCA-109 Object Oriented Programming and JAVA Notes unit-wise: 74 programs with output across 4 units

These MCA-109 Object Oriented Programming and JAVA IPU notes follow the four official units in order, and each unit ends with its own question bank. The official PDF numbers the units only, so the names below are the notes' own titles. Notes for every other paper in the course sit under GGSIPU MCA notes. The cover, contents and four content pages are in the sample PDF above.

MCA-109 exam corner: 48 short-answer and 40 long-answer exam questions by unit

The MCA-109 notes list 48 short-answer and 40 long-answer exam questions across 4 units, plus 74 programs with output. The banks are practice lists; the answers sit in the unit sections, so each question below has a page pointer.

The notes label questions 2.5 Marks and 12.5 Marks. The current paper-setter instructions give Q1 and every unit question 12 marks, so read the labels as an answer-length guide.

1. Unit 1: Explain compile-time and run-time polymorphism with programs. How is dynamic binding achieved? Pointer: overloading vs overriding table, page 19; the Shape reference program, page 20.
2. Unit 2: Explain inter-thread communication with the producer-consumer problem. Pointer: the Q class, page 42; output and wait vs sleep table, page 43.
3. Unit 3: Explain the delegation event model with a program. Pointer: its three components, page 61; the ClickCounter frame, page 62.
4. Unit 4: Explain RMI architecture, stub and skeleton, and the steps to create a remote object. Pointer: layers, pages 97-98; the Calculator files, pages 98-99.

More practice sits in the MCA-109 important questions.

Who writes and checks the MCA-109 Java notes?

• Prateek Talwar, author: Founder, Unnati Educations; Associate Company Secretary (ACS), ICSI, membership no. 58704, since 15 May 2019; B.Com, University of Delhi (School of Open Learning), 2012. Profile
• Ritik Rawat, subject reviewer for the Java code and theory: Senior Full Stack Developer, Unnati Educations · B.Tech

This 2026-27 edition of the GGSIPU MCA Semester 1 Object Oriented Programming and JAVA notes is mapped to the scheme approved on 28 July 2025. It flags newer Java changes: Security Manager deprecated from Java 17, rmic removed in Java 15. Last updated 13 October 2026, under our editorial policy.

The same team prepares GGSIPU important questions for every course.

How to write MCA-109 answers: program-plus-output, GUI and four-file RMI answers

Much of MCA-109 is answered with code, so the notes keep one layout: a short definition, a table or diagram, a complete program, then its output underneath. The Unit 2 strategy tip says it plainly: always write the output below each program. Without output, the examiner cannot tell whether your program runs.

• Q1 drill: Q1 is compulsory, carries 12 marks and draws on the whole syllabus, so the 48 short questions are your Q1 drill. Answer each in four to six lines: a definition, one rule or difference, and a one-line example such as JDK = JRE + development tools (page 9). For "differentiate" questions, a table is quicker to write and to mark; the notes give ready ones for ArrayList vs LinkedList and Statement vs PreparedStatement.
• Unit 3 GUI answers: five parts in order: the import lines, listener registration such as addActionListener(this), the handler method, window closing, and a neat sketch of the output window. Window closing matters because an AWT Frame does not close by default (page 65).
• Unit 4: write any RMI program as four files: interface, implementation, server and client. For JDBC, number the six connection steps before the code and close resources with try-with-resources.

class InsufficientBalanceException extends Exception {
  InsufficientBalanceException(String msg) { super(msg); }
}
// withdraw() throws it when amt > balance
// main(): withdraw(2000), then withdraw(4000), inside try-catch

class InsufficientBalanceException extends Exception {
  InsufficientBalanceException(String msg) { super(msg); }
}
// withdraw() throws it when amt > balance
// main(): withdraw(2000), then withdraw(4000), inside try-catch

Practise this format on GGSIPU MCA important questions.

MCA-109 and the MCA-167 Java lab, plus other GGSIPU MCA Sem 1 papers

Lab card: MCA-167 (2 practical hours, 1 credit). See the MCA-167 Java lab notes.

The official PDF gives the lab five outcomes but no practical list. They line up with the theory units: Unit 1 → lab CO1, Unit 2 → CO2, Unit 3 → CO3, and Unit 4 → CO4 (JDBC, RMI, I/O) and CO5 (Java 8).

Three Sem 1 papers feed this one:

• MCA-107 Database Management Systems gives the SQL and PL/SQL behind the Unit 4 JDBC programs.
• MCA-103 Computer Networks teaches the TCP and UDP layer behind the Unit 2 sockets.
• MCA-105 Operating Systems with Linux covers threads and deadlock.

Also this semester: MCA-101 Discrete Structures, labs MCA-161, MCA-163 and MCA-165, MCA-169 Minor Project I and MCA-171 Professional Proficiency I (NUES).

Synchronisation and happens-before ordering in Java threads: excerpt from page 41 of the MCA-109 notes

Do the MCA-109 notes cover the full GGSIPU syllabus?

Yes. Every topic in the four official MCA-109 units has its own section in the notes; no gaps found.

Official source: MCA scheme and syllabus, A.S. 2025-26 onwards (PDF). The scheme says the programme follows Ordinance 11.

Every course in GGSIPU notes is mapped to its official PDF the same way.

MCA-109 Java notes FAQs

Get the full MCA-109 Object Oriented Programming and JAVA Notes on WhatsApp

The full MCA-109 notes are a printed book only; they are not available as a PDF. Order the book on WhatsApp.

Format: a printed book of Object Oriented Programming and JAVA notes in English, 101 pages, with 17 exam tips. Delivery: within 5 to 7 days at most; the exact time may vary with your location.

Order the MCA-109 notes book on WhatsApp (4 units, 101 pages)